Heel-stiffener machine



(No Model.) 3 SheetsSheet 1. A. H. THOMPSON. HEEL STIPPENER MACHINE.

Patented Sept. 27, 1892.

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(No Model.) 7 3 Sheets-Sheet 2.

A. H. THOMPSON.

HEEL STIPFBNEB. MACHINE. No. 483,184. Patented Sept. 27, 1892.

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. Z Asa/7Z1; Thompsm UNITED STATES PATENT OFFICE.

ASA H. THOMPSON, OF GROTON, MASSACHUSETTS.

HEEL-STIFFEN ER MACHINE.

SPECIFICATION forming part of Letters Patent No. 483,184, datedSeptember 27, 1892.

Application filed June 3,1892. $erial No. 435,386. (No model.)

To 00 whom it may concern:

Be it known that I, ASA H. TnoMPsoN, of Groton, in the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Machines for Forming Heel-Stiffeners, of whichthe following, taken in connection with the accompanying drawings, is aspecification.

My invention relates to machines for forming heel-stiifeners and to thatparticular class of such machines as are used for reshaping thestiifeners after they have been partially formed by a previousoperation; and it consists in certain novel features of construction,arrangement, and combination of parts, which will be readily understoodby reference to the description of the drawings, and to the claims atthe end of this specification, and in which my invention is clearlypointed out.

Figure 1 of the drawings is a plan of a machine, illustrating myinvention. Fig. 2 is a sectional elevation of the same, the cuttingplanebeing on line 1 1 on Figs. 1 and 3. Fig. 3 is a partial vertical sectionon line 2 2 on Figs. 1 and 2. Fig. 4. is a plan of the former and moldcarrying bed-plate. Fig. 5 is a vertical section of the same on line 3 3on Fig. 1. Fig. 6 is a similar section on line 4 4-011 Fig. 4. Fig. 7 isa side elevation of the former, and Fig. 8 is a transverse section ofthe same on line 5 5 on Fig. 7. V

In the drawings, A is the main frame or support of the working parts ofthe machine, provided with the bearings A and A in which is mounted soas to be revoluble therein the shaft B, having firmly secured thereonthe bevel-pinion O and the driving-pulley D. A circular bed-plate E isbolted to the top of the frame or support A in a fixed position and isprovided with an annularlip or flange a, upon which is fitted so as tobe revoluble thereon the cam ring F, to the under side of which isbolted the annular bevel-gear G, as shown in Figs. 2 and 3. The circularbed-plateE has formed in its upper side the rectangular groove H, whichextends entirely across said bed near its center, and the groove I,arranged at right angles to the groove H and extending from one side ofsaid bed-plate to a point slightly beyond the center of said disk andpreferably out to a somewhat greater depth than the groove H, as clearlyshown in Figs. 4:, 5, and G. In the bottom of the groove H is formed twosmaller grooves 11 I), having semicircular bottoms, and a similar groove0 is formed in the bottom of the groove 1, as shown in Figs. 4, 5, andG. The side wall of the groove H opposite the groove 1 has set thereinthe steel block J, which has formed in its face a section of the moldshaped to fit the heel end of the former K, which is fitted to andmovable endwise in the groove I. The former K has formed in its outerend the slot at to receive the truck 6, which is mounted upon the pin f,as shown in Figs. 1 and 3. The former K has formed on its under side thelug g, which projects into the groove 0, and against the inner face ofwhich the spring h, placed between it and the inner end of the groove 0,acts to force said former outward and maintain it normally in contactwith the inner edge of the inner flange 'i of the cam-ring F, as shownin Figs. 1 and 3. The groove H has fitted therein so as to be movableendwise thereof the two blocks L and L, the inner ends of which areshaped to fit the sides of the former K, and thus constitute the sidesections of the mold, and their outer ends are slotted to receive thetrucks j and j, respectively, mounted upon pins 7c and respectively, asshown in Figs. 1 and 2.

The blocks L and L have formed on their under sides the lugsZ and Z,which project into the grooves b and b, respectively, and abut againstthe springs or and m, placed in said grooves between said lugs and theinner ends of said grooves, and serve to press said blocks outward andmaintain them normally in contact with the inner edge of the flange 11of the cam-ring F, as shown in Figs. 1 and 2. The former K and theblocks L and L are held in their respective grooves by the capplatesMand M, which are firmly bolted to the bed'plate E and have formed intheir inner edges rabbets or guideways for the flangeturning plate N,the tinder side of the front portion of which has set therein a steelplate 0 and is provided at its rear end with atruck 19, mounted on a pinset in the under side of said plate N, as shown in Fig. 3. The ring F isprovided with the upwardly-projecting rib q, to the inner face of whichis secured the three cam-segments O, O, and O at different levels, saidcam-segments acting, respectively, upon the trucks 6, j, and j to movethe former K and side sections of the moldL and L inward to press andshape the heel-stiffen er placed between the former and the threemold-sections J, L, and L. The cam-segments 0, O, and O occupy nearlythreefourths of the circumference of the ring F, and in the remainingportion of said circumference said ring is expanded outward and hasformed in its upper surface the cam path P to act upon the truck 19 toreciprocate the flange-turning plate N. The plate N is provided with thelongitudinal slot r, into which the pin 8, set in the bed E, projects toserve as a stop to limit the movement of said plate andprevent its beingaccidentally displaced while the truck 19 is disengaged from the cam P.It will be seen that the cam-segment O is placed at the same level asthe truck 6, the segment 0 at the same level as the truck 3', and thesegment 0 at the same level as the truck j, and that neither segmentoccupies such a position as to come in contact with or interfere witheither truck other than the one it is designed to act upon.

The operation of my invention is as follows:

The several parts being in the positions shown in the drawings, theoperator places a partially-formed heel-stiffener in the space betweenthe former and the three-part mold, with the flange edge upward, when ifthe shaftB be revolved the cam-segment 0 moves the former inward andclamps the stiffener by its center, and as soon as that is accomplishedthe canrsegments O and O acting upon the trucksj and j simultaneously,move the side mold-sections L and L inward and clamp the side portionsof the stiffener to the former. As soon as the stiffener is firmlyclamped to the former and while it is held in said clamped position theflange turning plate N is moved toward the front of the machine by theaction of the cam-path P upon the truck 19 to turn the heel seat orflange of the stiffener down upon the upper surface of the former, whensaid plate is moved back to its normal position by the action of theinner wall of the path P upon the truck 19, and at the same time, thesegments 0, O, and 0 having passed their respective trucks, the springs72 m, and m move the former K and side mold-sections L and L outward,thus releasing the molded stiffener, which is removed, and anotherpartially-formed stiffener is placed in position preparatory to beingmolded by the next passage of the cam-seg ments. The whole work ofreshaping the stiifener is done in a little more than onequarter of arevolution of the cam-ring, leaving nearly three-quarters of saidrevolution within which to remove the shaped stiffener and insertanother partially formed one. This makes a very effective machine,simple in construction and durable and much less liable to get out oforder or require repairs on account of the cams acting directly upon theformer and side mold-sections without the intervention of levers androds, as is commonly practiced. Another advantage is that itis verycompact and occupies comparatively little room.

I claim- 1. A machine for shaping heel-stiffeners, comprising thefollowing elements, viz: a fixed circular bed-plate, a former and athreepart mold carried by said bed-plate, the heelsection of said moldbeing secured in a fixed position to said bed-plate and the two sidesections of said mold and the former being fitted to and movable inbearings in said bed-plate, toward and from the center of saidbed-plate, a reciprocating flange-turning plate, and a camring mountedupon and revoluble about said fixed bed-plate and having formed thereonor secured thereto four separate and distinct cams constructed andarranged to act, respectively and in proper order, directly upon saidformer, the two side mold-sections, and the flange-turning plate to movethem toward:

each other and compress a heel-stiffener at each revolution of saidcam-ring.

2. In a machine for shaping heel-stiffeners, the combination of thecircular bed-plate E, the heel mold-section J, secured in a fixed position in said bed-plate, the side mold-sections L and L, fitted to andmovable toward and from each other in hearings in said bed-plate, theformer K, fitted to and movable endwise in a bearing in said bed-plate,the cam-ring F, mounted upon and revoluble about said bedplate, thecam-segments O, O, and O for moving said former and sidemold-sections'toward the centerof said bed-plate, springs for movingsaid former and side mold-sections outward, the flange-turning plate N,provided with the truck p, the path-cam P, formed in or secured to saidcam-ring F, the annular bevelgear G, secured to said ring F, thebevel-pin- ICO ion 0, and any suitable means for imparting rotary motionto said pinion.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 1st day of June, A. D.1892.

ASA ll. THOMPSON. Witnesses:

N. O. LOMBARD, GEO. A. SEWALL.

IIO

